/*!	 valuenodedynamiclistremovesmart.cpp
**	 Template File
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**  Copyright (c) 2008 Chris Moore
**  Copyright (c) 2012 Carlos López
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include <synfig/general.h>

#include "valuenodedynamiclistremovesmart.h"
#include "valuenodedynamiclistremove.h"
#include <synfigapp/canvasinterface.h>

#include <synfigapp/localization.h>
#include <synfig/valuenodes/valuenode_composite.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;
using namespace synfigapp;
using namespace Action;

ACTION_INIT(Action::ValueNodeDynamicListRemoveSmart);
ACTION_SET_NAME(Action::ValueNodeDynamicListRemoveSmart, "ValueNodeDynamicListRemoveSmart");
ACTION_SET_LOCAL_NAME(Action::ValueNodeDynamicListRemoveSmart, N_("Remove Item (Smart)"));
ACTION_SET_TASK(Action::ValueNodeDynamicListRemoveSmart, "remove");
ACTION_SET_CATEGORY(Action::ValueNodeDynamicListRemoveSmart, Action::CATEGORY_VALUEDESC | Action::CATEGORY_VALUENODE);
ACTION_SET_PRIORITY(Action::ValueNodeDynamicListRemoveSmart, -19);
ACTION_SET_VERSION(Action::ValueNodeDynamicListRemoveSmart, "0.0");
ACTION_SET_CVS_ID(Action::ValueNodeDynamicListRemoveSmart, "$Id$");

Action::ValueNodeDynamicListRemoveSmart::ValueNodeDynamicListRemoveSmart()
{
    index = 0;
    time = 0;
    origin = 0.5f;
    set_dirty(true);
}

Action::ParamVocab
Action::ValueNodeDynamicListRemoveSmart::get_param_vocab()
{
    ParamVocab ret(Action::CanvasSpecific::get_param_vocab());

    ret.push_back(ParamDesc("value_desc", Param::TYPE_VALUEDESC)
                  .set_local_name(_("ValueDesc"))
                 );
    ret.push_back(ParamDesc("time", Param::TYPE_TIME)
                  .set_local_name(_("Time"))
                  .set_optional()
                 );
    ret.push_back(ParamDesc("origin", Param::TYPE_REAL)
                  .set_local_name(_("Origin"))
                  .set_optional()
                 );

    return ret;
}

bool
Action::ValueNodeDynamicListRemoveSmart::is_candidate(const ParamList &x)
{
    if (!candidate_check(get_param_vocab(), x)) {
        return false;
    }

    ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
    bool parent_is_dynamic_list(
        value_desc.parent_is_value_node() &&
        ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node())
    );

    if (!parent_is_dynamic_list) {
        // Let's check if we are selecting a composite child
        if (value_desc.parent_is_value_node()) {
            ValueNode::Handle compo(ValueNode_Composite::Handle::cast_dynamic(value_desc.get_parent_value_node()));

            if (compo) {
                ValueNode_DynamicList::Handle parent_list = NULL;
                std::set<Node*>::iterator iter;

                // now check if the composite parent is a dynamic list type
                for (iter = compo->parent_set.begin(); iter != compo->parent_set.end(); ++iter) {
                    parent_list = ValueNode_DynamicList::Handle::cast_dynamic(*iter);

                    if (parent_list) {
                        break;
                    }
                }

                if (parent_list) {
                    parent_is_dynamic_list = true;
                }
            }
        }
    }

    return (parent_is_dynamic_list);
}

bool
Action::ValueNodeDynamicListRemoveSmart::set_param(const synfig::String& name, const Action::Param &param)
{
    if (name == "value_desc" && param.get_type() == Param::TYPE_VALUEDESC) {
        ValueDesc value_desc(param.get_value_desc());

        if (!value_desc.parent_is_value_node()) {
            return false;
        }

        value_node = ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());

        if (!value_node) {
            ValueNode::Handle compo(ValueNode_Composite::Handle::cast_dynamic(value_desc.get_parent_value_node()));

            if (compo) {
                ValueNode_DynamicList::Handle parent_list = NULL;
                std::set<Node*>::iterator iter;

                // now check if the composite's parent is a dynamic list type
                for (iter = compo->parent_set.begin(); iter != compo->parent_set.end(); ++iter) {
                    parent_list = ValueNode_DynamicList::Handle::cast_dynamic(*iter);

                    if (parent_list) {
                        value_node = parent_list;
                        // Now we need to find the index of this composite item
                        // on the dynamic list
                        int i;

                        for (i = 0; i < value_node->link_count(); i++)
                            if (compo->get_guid() == value_node->get_link(i)->get_guid()) {
                                break;
                            }

                        if (i < value_node->link_count()) {
                            value_desc = synfigapp::ValueDesc(value_node, i);
                        } else {
                            return false;
                        }

                        break;
                    }
                }

                if (!value_node) {
                    return false;
                }
            } else {
                return false;
            }

            if (!value_node) {
                return false;
            }
        }

        index = value_desc.get_index();
        return true;
    }

    if (name == "time" && param.get_type() == Param::TYPE_TIME) {
        time = param.get_time();
        return true;
    }

    if (name == "origin" && param.get_type() == Param::TYPE_REAL) {
        origin = param.get_real();
        return true;
    }

    return Action::CanvasSpecific::set_param(name, param);
}

bool
Action::ValueNodeDynamicListRemoveSmart::is_ready()const
{
    if (!value_node) {
        return false;
    }

    return Action::CanvasSpecific::is_ready();
}

void
Action::ValueNodeDynamicListRemoveSmart::prepare()
{
    clear();

    // If we are in animate editing mode
    if (get_edit_mode()&MODE_ANIMATE) {
        Action::Handle action(Action::create("ActivepointSetOff"));

        if (!action) {
            throw Error(_("Unable to find action (bug)"));
        }

        action->set_param("canvas", get_canvas());
        action->set_param("canvas_interface", get_canvas_interface());
        action->set_param("time", time);
        action->set_param("origin", origin);
        action->set_param("value_desc", ValueDesc(value_node, index));

        if (!action->is_ready()) {
            throw Error(Error::TYPE_NOTREADY);
        }

        add_action(action);
    } else {
        Action::Handle action(Action::create("ValueNodeDynamicListRemove"));

        if (!action) {
            throw Error(_("Unable to find action (bug)"));
        }

        action->set_param("canvas", get_canvas());
        action->set_param("canvas_interface", get_canvas_interface());
        action->set_param("time", time);
        action->set_param("origin", origin);
        action->set_param("value_desc", ValueDesc(value_node, index));

        if (!action->is_ready()) {
            throw Error(Error::TYPE_NOTREADY);
        }

        add_action(action);
    }
}